Radiator



(No Model.)

A J. MASON.

RADIATOR. No. 258,092. Patented May 16, 1882.

N4 PETERS Phoxvulhngmpmr. waxhngmn. D. c,

UNITED STATES PATENT OFFICE..

JOSHUA MASON, OF PATERSON, NEW JERSEY.

RADI ATO R.

SPECIFICATION forming part of Letters Patent No. 258,092, dated May 16, 18.82.

Application filed February 20, 1882.

- To all whom it may concern:

yN ew Jersey, have invented certain new and useful Improvements in Radiators, of which the following is a specification.

My invention more especially relates to radiators employed for heating by hot water; and its principal Objectis to so construct such a radiator as to provide for the circulation of a small quantity of water in contact with a radiating-surface of comparatively great area, whereby avery rapid circulation is produced.

To this end my invention consists -in th combination, in a radiator, of au upper and a lower water or steam chamber or head, outer and inner tubes, between which are annular water or steam spaces, the said outer tubes connectingthe two chambers or heads, and the said inner tubes passing through the former and through both chambers or heads, and a central tube communicating with the upper chamber or head, and having a water or steam inlet at its lower end, thus affording provision for a rapid circulation of water up through the central tube and down through the spaces between the outer and inner tubes while the air circulates around the outer tubes and through the inner tubes. The lower chamber or head may be constructed with a passage or conduit separate from the remaining portion thereof, and the lower end of the said central tube may communicate with said passage or conduit.

In the accompanying drawings, Figure 1 represents a vertical section of a radiator embodying my invention, taken through the inner and outer tubes. Fig.2 is a-sectionalview of the two heads o r chambers and the central tube, but a side view ofthe outer tubes. Fig. 3 is a transverse section upon the dotted line .fr w, Fig. 1; and Fig. 4 is a transverse section upon the dotted line y y, Fig. 2.

Similar letters of reference designate corresponding parts in all the gures.

A B designate respectively the lower and upper heads of the radiator, both hollow, and the lower one ot' which is preferably provided with a water passage or conduit, a, made i-ntegral with it, but separated from the main portion of the chamber or head for a purpose to be hereinafter described.

(No model.)

' C D designate respectively outer and'inner tubes arranged concentrically, the latter within the former, as shown clearly in Figs. I and 4. The outerftubes, C, are connected to the upper side ot' the lower head and the under side ner tubes maybe secured in the lower chamf ber or head by screwing'or driving them in, s o as to make a tight joint, and they are .preferablysecured at their upper ends by means ot' nuts E, of a form for which were granted to me Letters Patent No. 153,776, dated August 4, 1874. The tubes 1) are secured in these nuts by driving or screwing, and the latter are screwthreaded externally, and engage with screwthreaded holes or sockets in the upper side otl the upper chamber or head, B. I prefer to use nuts of this kind, for the reason that they comprise corrugated portions ot' thin metal, and compensate readily for any difference in the longitudinal expansion of the outer and inner tubes, thus preventing leakage and the straining of the parts ot' the radiator, which otherwise might ensue.

F designates acentral tube or pipe, secured at its upper end in the under side of the cham ber or head B,- and in communication at the `lower end with the passage or conduit a in the lower chamber or head, A, or with another inn let which receives the heated water through a pipe, b, from a boiler.

G designates the pipe through which water is delivered from the radiator after passing through the same, and a small pipe, c, may be connected with this pipe to supply the water which escapes from the system of radiators and heatingpipes by leakage, evaporation, or otherwise.

The pipe c may communicate with a street main or with a tank placed high above the radiator, and by it the full supply of water for circulation is maintained. v

In the ordinary operation ot' the radiator,

IOC

when it is placed above thevboiler,` as itus'ually will-he,l the heated watereenters ,from the boiler through the pipe b, and thence passes through the conduit or passage a, through the central tube, F, to the upper chamber or head B, and thence down the spaces between the outer and inner tubes, C D, to the lower chamber or head, A, and out through the pipe G to the boiler of another radiator, or back to the boiler.

By the term central7 as applied to the tube' F,I do not mean that it is exactlygfcentral within the radiator, butonly that itis arranged within the circle or other ligure formed by the outer pipes, C. In place ot" one tube F, two or more'might be used;

It will be observed that thc water ascending yin a solid column through the center tube, F, -iscooled verylittle and much less rapid-ly than ltubes C D. The outer surface of the tubes C and F,'the inner surface of the tubes D, and the outer surface of the chambers or heads all V'combined present a very large heating-surface g Yfor heating air, rendering this a very effectivev -have the radiatorbelow the boiler from which radiator.v

Incertain cases it might be necessary to vit derives itsh'ot water, and in such cases wa- Ater may enter the radiatorthrough a pipe in -vide a radiator in which the circulation is very rapid, which is a result greatly to be desired in heating by hot water.

What I claimas myinvention, auddesire to secureI byLetters Patent, is-

The combination, in a radiator, ot' an upper and a lower water or steam chamber or head, outer and inner upright'tubes, the former of which connect the two water chambers or heads, and the latter of which pass through the former and through both chambers or heads, and a central tube communicating with the upper chamber or head, and having an inlet at the lower end thereof, substantially as vand for'the purpose specified.

2. The combination of the lower head or conduit a, the upper head or chamber, B, the

youter and innerv tubes, C D, and the central tube, F, substantially as specified.

JOSHUAMASON. l

Witnesses:

FREDK. .HAYNEs, WILL HAGUE. 

